Danish defence unable to crew key Arctic ships amid personnel shortages

Danish defence forces lacked nearly a quarter of required crew members on Arctic patrol vessels earlier this year, even as allied nations reinforced Greenland’s security, according to classified internal documents obtained by Danish broadcaster DR.

The March 3 documents describe the situation in the central unit patrolling strategically vital North Atlantic waters as “worrying,” with shortages forcing ships to limit operations and remain close to safe harbours. The personnel gaps—averaging 23 percent across Arctic inspection ships—reduce operational effectiveness and place undue strain on existing crews, the documents state.

The shortages extend beyond patrol vessels: overall, Denmark’s 1st Squadron lacks roughly one in seven sailors across its fleet. Niels Pihlblad, a crew member and union representative, confirmed that understaffing directly hampers military capabilities. “The situation is so dire that I wish ship commanders would more often report that we’re unable to sail operationally due to safety concerns,” he told DR. “That might be the only way leadership and politicians will take notice.”

Operational limits and safety risks
With fewer technically trained personnel onboard, ships avoid extended patrols, instead sticking to predictable routes between ports where backup is available. “We’re essentially running a ferry service from harbour to harbour,” one source said, rather than conducting unrestricted military patrols.

The constraints also affect emergency response. While crews remain committed to search-and-rescue missions—such as the 2024 rescue of two pilots whose plane crashed off southern Greenland—Pihlblad noted that each operation now involves “calculated risk.” Fire safety is similarly compromised, with too few smoke divers available to meet standards.

Background: Arctic patrol roles
Denmark’s Arctic inspection ships—comprising four Thetis-class and three Knud Rasmussen-class vessels—perform sovereignty enforcement, fisheries inspections, environmental monitoring, and search-and-rescue operations in Greenlandic and Faroese waters. These tasks are coordinated by Arctic Command in Nuuk.

The crew shortages follow a January security crisis in which Denmark prepared for a potential US threat to Greenland, prepositioning blood supplies and explosives to disable airfields if needed.